i'm gwen ifill. president obama said health care legislation set to go into effect tomorrow will prevent insurance companies from unfairly denying coverage to people in need. >> woodruff: and i'm judy woodruff. on the "newshour" tonight, betty ann bowser looks at the impact political and otherwise of the reform legislation six months after its passage. >> ifill: then, judy talks to former president clinton about the economic recovery, his global initiative and the upcoming midterm elections. >> if this is a referendum on people's anger and apathy, so our side stays home and their side's in play, we don't cowell. if it's a choice between who is going to do what, we can do well, and that's what i hope it will be. >> woodruff: tom bearden reports from louisiana on the state's growing battle against coastal erosion, in the wake of the b.p. oil spill. >> large chunks of louisiana's coastal wetlands are literally dissolving and so are some of the nation's best fishing ground. >> ifill: plus, we hear from f